When and how will quantum computers outperform classical computers?
Indeed, we have witnessed such achievements of quantum supremacy in some specialized tasks as random sampling by exploiting the quantum computers that are fully exposed to noise [1]}, [2]}, [3]}, [4]}, [5]}.
We foresee that the precedent milestone after this quantum transcendence is the realization of quantum acceleration for practical problems.
In this regard, an outstanding question is the following: in which problem next? This involves researchers in broad fields including natural science, computer science, and of course quantum technology.
